throwaway
throw-a-way
adjective
Said or done casually, without much thought or importance.
"His throwaway remark caused offence."
adjective
Designed to be used once and then discarded; disposable.
"We should reduce our use of throwaway plastics."
Thesaurus
Synonyms: bill, circular, handbill, broadsheet, flier, flyer, broadside, street arab, gamin